Cita APA (7th ed.)

Frederick, P. (1980). Creative sunprinting: Early photographic printing processes rediscovered. Focal Press.

Cita Chicago (17th ed.)

Frederick, Peter. Creative Sunprinting: Early Photographic Printing Processes Rediscovered. London: Focal Press, 1980.

Cita MLA (9th ed.)

Frederick, Peter. Creative Sunprinting: Early Photographic Printing Processes Rediscovered. Focal Press, 1980.